We all work differently. And although I fully sympathise with the issue of being colourblind the Cubase selected event style is really awful.
A event that changes colour on selection is invisible in a project where colour has a meaning, where it indicates something important. In post we use colour to indicate “status” all the time.
If the event when it is selected changes or inverts that colour it totally brakes all colour based workflows.
Consider this, 200+ tracks. Colour is used to indicate track “family” and also “status”. A file processed with RX has one colour, a processed reverb another colour, a event that needs replacing or fixing gets yet another colour, a swapped out dialog gets yet another colour.
If the colour of events keep changing as they are selected (and we select,deselect,select, adjust locators, deselect all the time in post. The flickering Colors of cubase totally drives us mad.
I would no be against several modes of visibility for selected events. But changing to the cubase style is for me and my colleagues totally out of the question.